No doubt. 50 cal is too prevalent. I'm not sure what the military's plans are for distributing this weapon, but one article I read stated the OICW/OCSW was meant for peacekeeping, since an army would need a healthy supply of spare parts and ammo to make it a credible weapon.
I think this is a doable mod. All we need is a modeler to do the O2, a texture guy to make it look nice, and a coder to do the weapon config.
Any volunteers?